An electromagnetic drive-type die casting decompression valve comprises a drive shaft, provided inside a drive block, driven by electromagnetic force from a solenoid, and a valve shaft, provided inside a valve block separate from the drive shaft, provided with a valve body on one shaft end. The inflatable member houses a resiliently expandable inflation member generally made of open cell foam, and has an opening for airflow communication between the interior of the inflatable member and the outside environment. The OS includes a \u201cNucleus\u201d for accessing hardware and memory, a kernel that builds services running on the Nucleus, and applications that run on top of the kernel.